I have an 4-8-8-4 Big Boy in N scale. It does good on a strightaway, but has a bad habit of jumping the curves. Anybody got any ideas on what is the mimimum radias track should be for it? The maker Atlas could not tell me.
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I’am running an 2-6-6-2 and an 2-8-8-2 both on my “N” scale layout,and had to inlarge some of my curves out to about 16 degrees, they run fine now.I started with an GP 40-2(six wheel) then my large steam engines,I’am useing code 80 flex-track.just kept moving it tell thay all ran OK!It came out at about 16 degrees .Hope this helps?
JIM
Oleirish - What radius are you using, in inches?
16* of 9 inch radius is different then 16* of 12 inch radius…
Firstly, unless someone can inform me differently, Atlas never made a Big Boy. There have been a few brass models imported by various importers but the only plastic one I recall was the Rivarossi one imported by Con-Cor.
Whatever, this is a pretty big engine; the boiler is six inches long or more; multiply the length of the boiler by 3 and you come up with 18 inches or more and that’s what this beast needs as a minimum radius.
You could be right on the maker. I have it in a box somewhere. Getting ready to build a new layout.
I will try your idea. Thanks